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Message-ID: <4576F488.8070807@dubioso.net>
Date: Wed, 06 Dec 2006 17:49:12 +0100
From: Roland Weber <http-async@dubioso.net>
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To: HttpClient User Discussion <httpclient-user@jakarta.apache.org>
Subject: Re: PostMethod - parameter in BASE64String
References: <000a01c71941$2ac10550$c900a8c0@marcelo>
	 <OF5AFA24AD.83484FC6-ONC125723C.0049CA05-C125723C.0049E36D@de.ibm.com>
  <598ad5b50612060605l41f89869jd1832af801cf5f4c@mail.gmail.com>
 <20061206144422.155010@gmx.net> <001801c7195b$5c3d5470$c900a8c0@marcelo>
In-Reply-To: <001801c7195b$5c3d5470$c900a8c0@marcelo>
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Hello Marcelo,

> Actually I don�t need (and I can�t) encode the whole string, only chars
> considered invalid to base64.
> What I am doing is the same as you: I�m replacing some chars explicitly
> to the corresponding one in base64.
> 
> Example:
> ":" to %3A
> "/" to %2F
> "+" to %2B

This is NOT base64! This is www-url-encoded.

> The problem here, is that I missing some char and getting an error from
> server: "Invalid character in a Base-64 string."

That may be because you're not generating a base64 string at all.

Please follow the instructions in the Client HTTP Programming Primer
to analyze _what_ you should actually be sending. You may have to
install a network sniffer to be sure about what's sent by a browser.
If something needs to be base64-encoded, it is either generated by
the server or you'll find JavaScript that performs base64 encoding.
http://wiki.apache.org/jakarta-httpclient/ForAbsoluteBeginners

If you need www-url-encoding, just add the name/value pairs as parameters
to the PostMethod, the method should take care of the encoding.
http://jakarta.apache.org/commons/httpclient/apidocs/org/apache/commons/httpclient/methods/PostMethod.html#addParameter(org.apache.commons.httpclient.NameValuePair)

hope that helps,
  Roland


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